Slope: -2/3
y intercept: -1
Answer:
=209.09 mg
Step-by-step explanation:
given: material= radium
half life= 1590 years
initial mass 
=500mg
we know that to calculate the amount left we use
= 
therefore
= 
=209.09058407921 mg
=209.09 mg amount left after 2000 years
Answer:
I can see any expressions
You need to expand the brackets before you can simplify, so:
-3 × 10x = -30x
-3 × 4y = -12y
6 × 6x = 36x
6 × -2y = -12y
So now you have (-30x - 12y) + (36x - 12y)
-30x + 36x = 6x
-12y + -12y = -24y
So your answer is 6x - 24y. I hope this helps!
B. The estimate and the exact product are 0.852 away from each other making it the closest estimate
